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首页> 外文期刊>Polymers for advanced technologies >Effect of nanosized carbon black on thermal stability and flame retardancy of polypropylene/carbon nanotubes nanocomposites
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Effect of nanosized carbon black on thermal stability and flame retardancy of polypropylene/carbon nanotubes nanocomposites

机译：纳米炭黑对聚丙烯/碳纳米管纳米复合材料热稳定性和阻燃性的影响

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摘要

Nanosized carbon black (CB) was introduced into polypropylene/carbon nanotubes (PP/CNTs) nanocomposites to investigate the effect of multi-component nanofillers on the thermal stability and flammability properties of PP. The obtained ternary nanocomposites displayed dramatically improved thermal stability compared with neat PP and PP/CNTs nanocomposites. Moreover, the flame retardancy of resultant nanocomposites was greatly improved with a significant reduction in peak heat release rate and increase of limited oxygen index value, and it was strongly dependent on the content of CB. This enhanced effect was attributed mainly to the formation of good carbon protective layers by CB and CNTs during combustion. Rheological properties further confirmed that CB played an important role on promoting the formation of crosslink network on the base of PP/CNTs system, which were also responsible for the improved thermal stability and flame retardancy of PP.
机译：将纳米炭黑（CB）引入聚丙烯/碳纳米管（PP / CNTs）纳米复合材料中，以研究多组分纳米填料对PP的热稳定性和可燃性的影响。与纯PP和PP / CNTs纳米复合材料相比，所获得的三元纳米复合材料显示出显着改善的热稳定性。此外，所得纳米复合材料的阻燃性大大提高，峰值放热速率显着降低，极限氧指数值增加，并且强烈依赖于CB的含量。这种增强的作用主要归因于在燃烧过程中CB和CNT形成了良好的碳保护层。流变性质进一步证实，CB在促进基于PP / CNTs系统的交联网络形成中起重要作用，这也有助于提高PP的热稳定性和阻燃性。

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